Cod sursa(job #2286922)
Utilizator | Data | 20 noiembrie 2018 23:50:55 | |
---|---|---|---|
Problema | Sum | Scor | 0 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.55 kb |
#include <fstream>
using namespace std;
ifstream fin("sum.in");
ofstream gout("sum.out");
int main()
{
int n, i, j, d, x, doiorix, sum;
fin >> n;
for (i=1;i<=n;i++)
{
fin >> x;
int v[x];doiorix = 2*x;
for (d=2; d<=x;d++)
if (x%d==0)
for (j = d ;j<= doiorix ; j+=d)
v [ j ] = -1 ;
sum = 1;
for (d=2; d<=doiorix;d++)
if (v[d] != -1)
sum += d;
gout << sum << '\n';
}
return 0;
}